 The COLREGs are considered the basics upon which the safe navigation of the vessels and their conduct are built. Specifically designed and released to be used on the navigational bridges of the vessels, this publication is expected to provide the necessary guidance and practical advice to the watchkeepers, starting from the cadets and up to the inspecting officers and Masters, on the most important collision avoidance rules.
The content of the volume has also been intended to be used as a basis to discussed during the training sessions and on-board meetings. Twelve collision avoidance rules have been discussed in the pages of this excellent guidebook - they have been specifically selected as these are the rules most commonly misinterpreted and breached. The book is also demonstrating of the readers how the collision avoidance rules are fitting together and also how exactly the proper interpretation and correct application of these rules could be influenced by the huge amount of information that is readily available today from the electronic aids.
The content of the guide concludes with a perfectly selected series of the collision cases and plotting sheets that can be used by the readers for the illustration of the developing situations on watch. Both questions included in the book and the case studies have been designed to serve as a starting point for the discussions on the various important aspects of the ship collision avoidance...
 An excellent source of reference for the prudent mariners providing them with the significantly improvised and no-instrument methods. The content has been found to be useful, fun to read, interesting and informative, helping readers to get the proper clear understanding of the general principles of navigation not addressed earlier. The text of the publication is thorough, well-thought and authoritative, making it a very definitive professional work for the seamen of all experience levels.
The seamen know that any instrument can fail, get broken or fall overboard. The present title by David Burch is aimed to show the seafarers how to find a way regardless of the navigational equipment possessed, and regardless of what boat or vessel they operate. The author has made a great job in explaining readers the making use of literally all available means and materials and apply them to the calculation of the speed and direction of the vessel, longitude and latitude and also to deal with all important aspects of dead reckoning and piloting of the vessel.
They will learn about the steering of the ship by sun, wind, swells and stars, finding the sun in the fogbanks, improvise their knotmeters and sextants, estimate the leeway, current and latitude, and a wealth of other vital information.
 David Steel, the author of this perfect, very useful and informative two-volume set, was deservedly considered to be among the world recognized and respected naval publishers who worked in the past, namely in the late XVIII/early XIX centuries. His interesting and well-though publications were focusing on the naval strategy and established ship construction techniques.
The present work by Steel was originally released nearly forty years ago and was treated as the very first English manual providing all interested readers including students and specialists, with the best naval practice. The content of this set was specifically designed and worked out to aspire the young officers. The success of these books resulted in establishing the brilliant reputation of David Steel as a publisher. These publications provide all readers with the good descriptions of both practical and theoretical aspects of the masts/rigging, sails and the whole science of sailing.
The author perfectly combined the practical advice which is supported by both scientific and math explanations with the numerous helpful illustrations providing valuable insight into the British seamanship of the times of the Napoleonic wars. We would recommend these volumes to all persons with the deep interest in naval sciences.
 The book opens with a section dedicated to the general differential equations relevant to the dynamics of ships, and the aim of this section is the derivation of the equations covering the general body motion in both inertial and body-fixed reference systems with/without principle axis; here, the author has paid particular attention to the acting forces and moments that commonly arise from the acceleration through the water.
The second section addresses the equations related to the maneuvering of the vessels with three freedom degrees, including systems of coordinates, aims and assumptions of the ship maneuvering theory, all equations and exercises for easier understanding of the theory. The next section is dealing with the determination of the added masses, while the fourth section describes the steady maneuvering forces, including their representation and experimental determination, again with some exercises.
The sixth section covers the forces acting on the ship rudders including their general representation and determination of the associated coefficients plus the interaction between the propeller and rudder of the vessel. The remaining sections of the volume are dealing with the yaw stability, transversal forces acting on propeller plus the associated yaw moment, maneuverability diagram, application of CFD methods for the maneuverability problems, and other valuable and important information.
 There were numerous significant changes that occurred to the global maritime security; while some of these changes were necessary and even overdue, others did result in the situations where beneficiaries were the providers of the security services and associated equipment.
And against subject background, this publication is setting out to provide the reality check, bringing together a broad range of various perspectives of the critically important maritime issues collected from all parts of the world. The book contains chapters exploring the operational and also legal realities of the maritime security measures implemented straight after 9/11. The publication is mainly aimed at the people having serious interest in various dimensions of the newly introduced maritime security measures.
Above mentioned interest may be a general interest in the field of maritime security or a specific interest, for example ones directly relating to the implementation of ISPS Code, executing the practical security measures both in ports and at sea, or in the assessment of the potential security risks and threats treated as inherent in the realm of today's international shipping. The author of this volume strongly hope that the readers of all categories will find something of professional interest for them in the present document.
 This is a basic publications released to introduce the beginners to the navigational tools and vocabulary as well as to the established and effective celestial navigation techniques. In the list of the recommended navigational instruments are the H. O. 259 tables which are in a very wide use among the amateur marine navigators owing to their simplicity and ease of use.
In fact, there are no pre-requisites for using this book - the readers are only expected to be able to read, add/subtract, understand the angles and know how to use the protractor. Al sailors will for sure enjoy this volume, regardless of their experience - the content of this classic book will definitely be equally useful and interesting to everyone from armchair-navigators to the racers and circumnavigators. The celestial navigation, i.e. steering by the stars is the art perfected by the seafarers of ancient Polynesia navigating over thousand years before Europeans.
The book covers all important aspects of celestial navigation, including required equipment, language and taking a sight, line of position and plotting it, fix, determining the latitude, moon and starts, three-star fix, start finding, polishing the celestial navigation skills etc. Three appendices presented at the end provide readers with the table of formulas, and list of abbreviations and symbols commonly used in celestial navigation.
 Two books making this RYA training set contain all required materials. The content of the first book is arranged in two parts; the chapters of the first part cover the sextant, the meridian passage sight and non-meridian passage sight logic, spherical/PHZ triangle, plotting the position lines, position fixing, planets, Moon and stars, the Pole Star, compass checking and Great Circle Sailing plus valuable tips on practical use of the sight reduction tables.
The second part of the same book address the meteorology including synoptic charts, berg winds and fog prediction, weather bulletin schedule, passage planning/making, systems of satellite navigation. In addition, it contains the solutions to the examples and extracts taken from nautical almanac and sight reduction tables.
The second book of the set continues with the meteorology, additionally covering the coastal effects and weather picture, air masses and winds, clouds and fog, occlusions and storms, navigation areas and revolving storms, plus the list and explanation of the terminology in use and instructions on preparation of the synoptic charts, weather forecasting, thunderstorms, plus several appendices addressing the inversions and fog prediction, berg winds, and also containing the synoptic charts for different regions. General explanation of the satellite navigation systems has also been provided.
 This volume is an excellent source of practical guidelines intended to be of use for the engineers, programmers and scientists who require to be dealing with the astronomical predictions or associated calculations. The readers are actually expected to have some mathematical knowledge, more than a basical, therefore this is not the best choice for the beginners.
This cookbook of algorithms provides a huge number of numerical problems commonly coming up in astronomy. The content makes it easy for the readers to use the presented algorithms for coding. Note that you will have to study more than just one chapter of this volume to get full understanding of the astronomical problems because none of them is easy.
The author has focused on the classical math astronomy, though he has also dealt with some of the astronomy-oriented math techniques, for example fitting curves and interpolation, data sorting etc. Astrophysics has not been addressed. Obviously, not all topics of math astronomy can be covered in a single volume so the decision was made by the author to select most important and useful ones for the inclusion in his work. The material is explained in a very clear and precise way helping reader to understand the algorithms.
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